Full Details from Amazon.com : http://www.amazon.com/gp/product/B000SAJJX6?tag=onigi-20

Cyclo PCI Slot Blue LED Fan

Improve air flow inside the case with this 80 x 80 x 15mm Fan
High performance low noise DC FAN is rated 2200 10 RPM and 21dBA
Simple installation with a Molex 4-pin power connector
Classic translucent design with fantastic shining blue LED